2 * include/asm-s390/setup.h
5 * Copyright IBM Corp. 1999,2006
8 #ifndef _ASM_S390_SETUP_H
9 #define _ASM_S390_SETUP_H
11 #define COMMAND_LINE_SIZE 1024
13 #define ARCH_COMMAND_LINE_SIZE 896
17 #include <asm/types.h>
19 #define PARMAREA 0x10400
20 #define MEMORY_CHUNKS 256
25 #define IPL_DEVICE (*(unsigned long *) (0x10404))
26 #define INITRD_START (*(unsigned long *) (0x1040C))
27 #define INITRD_SIZE (*(unsigned long *) (0x10414))
29 #define IPL_DEVICE (*(unsigned long *) (0x10400))
30 #define INITRD_START (*(unsigned long *) (0x10408))
31 #define INITRD_SIZE (*(unsigned long *) (0x10410))
32 #endif /* __s390x__ */
33 #define COMMAND_LINE ((char *) (0x10480))
35 #define CHUNK_READ_WRITE 0
36 #define CHUNK_READ_ONLY 1
44 extern struct mem_chunk memory_chunk[];
45 extern unsigned long real_memory_size;
47 void detect_memory_layout(struct mem_chunk chunk[]);
49 #ifdef CONFIG_S390_SWITCH_AMODE
50 extern unsigned int switch_amode;
52 #define switch_amode (0)
55 #ifdef CONFIG_S390_EXEC_PROTECT
56 extern unsigned int s390_noexec;
58 #define s390_noexec (0)
62 * Machine features detected in head.S
64 extern unsigned long machine_flags;
66 #define MACHINE_FLAG_VM (1UL << 0)
67 #define MACHINE_FLAG_IEEE (1UL << 1)
68 #define MACHINE_FLAG_P390 (1UL << 2)
69 #define MACHINE_FLAG_CSP (1UL << 3)
70 #define MACHINE_FLAG_MVPG (1UL << 4)
71 #define MACHINE_FLAG_DIAG44 (1UL << 5)
72 #define MACHINE_FLAG_IDTE (1UL << 6)
73 #define MACHINE_FLAG_DIAG9C (1UL << 7)
74 #define MACHINE_FLAG_MVCOS (1UL << 8)
75 #define MACHINE_FLAG_KVM (1UL << 9)
76 #define MACHINE_FLAG_HPAGE (1UL << 10)
77 #define MACHINE_FLAG_PFMF (1UL << 11)
79 #define MACHINE_IS_VM (machine_flags & MACHINE_FLAG_VM)
80 #define MACHINE_IS_KVM (machine_flags & MACHINE_FLAG_KVM)
81 #define MACHINE_HAS_DIAG9C (machine_flags & MACHINE_FLAG_DIAG9C)
84 #define MACHINE_HAS_IEEE (machine_flags & MACHINE_FLAG_IEEE)
85 #define MACHINE_HAS_CSP (machine_flags & MACHINE_FLAG_CSP)
86 #define MACHINE_HAS_IDTE (0)
87 #define MACHINE_HAS_DIAG44 (1)
88 #define MACHINE_HAS_MVPG (machine_flags & MACHINE_FLAG_MVPG)
89 #define MACHINE_HAS_MVCOS (0)
90 #define MACHINE_HAS_HPAGE (0)
91 #define MACHINE_HAS_PFMF (0)
93 #define MACHINE_HAS_IEEE (1)
94 #define MACHINE_HAS_CSP (1)
95 #define MACHINE_HAS_IDTE (machine_flags & MACHINE_FLAG_IDTE)
96 #define MACHINE_HAS_DIAG44 (machine_flags & MACHINE_FLAG_DIAG44)
97 #define MACHINE_HAS_MVPG (1)
98 #define MACHINE_HAS_MVCOS (machine_flags & MACHINE_FLAG_MVCOS)
99 #define MACHINE_HAS_HPAGE (machine_flags & MACHINE_FLAG_HPAGE)
100 #define MACHINE_HAS_PFMF (machine_flags & MACHINE_FLAG_PFMF)
101 #endif /* __s390x__ */
103 #define ZFCPDUMP_HSA_SIZE (32UL<<20)
106 * Console mode. Override with conmode=
108 extern unsigned int console_mode;
109 extern unsigned int console_devno;
110 extern unsigned int console_irq;
112 extern char vmhalt_cmd[];
113 extern char vmpoff_cmd[];
115 #define CONSOLE_IS_UNDEFINED (console_mode == 0)
116 #define CONSOLE_IS_SCLP (console_mode == 1)
117 #define CONSOLE_IS_3215 (console_mode == 2)
118 #define CONSOLE_IS_3270 (console_mode == 3)
119 #define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
120 #define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
121 #define SET_CONSOLE_3270 do { console_mode = 3; } while (0)
123 #define NSS_NAME_SIZE 8
124 extern char kernel_nss_name[];
126 #else /* __ASSEMBLY__ */
129 #define IPL_DEVICE 0x10404
130 #define INITRD_START 0x1040C
131 #define INITRD_SIZE 0x10414
132 #else /* __s390x__ */
133 #define IPL_DEVICE 0x10400
134 #define INITRD_START 0x10408
135 #define INITRD_SIZE 0x10410
136 #endif /* __s390x__ */
137 #define COMMAND_LINE 0x10480
139 #endif /* __ASSEMBLY__ */
140 #endif /* __KERNEL__ */
141 #endif /* _ASM_S390_SETUP_H */